Packed moving part.



F J. MUOANDLE'SS. PACKED MOVING PART.

APPLICATION FILED JUNE 24, 1913.

Patented Jan. 2'7, 1914.

2 SHEETS-SHEET 1.

Clitoruegs F. J. MOGANDLESS.

PACKED MOVING PART.

APPLICATION FILED JUNE 24. 1912.

1,085,351. Patented Ja11.27, 1914.

2 BHEET8-SHBET 2.

- 1 HHWM 3 [mentor SM WWWM attorneys FRANK J. MGCANDLESS, OF ALLERTON, IOWA.

PACKED MOVING PART.

Specification of Letters Patent.

Application filed June 24, 1913.

Patented Jan. 2'7, 1914. Serial No. 775,585.

To all whom it may concern Be it known that I, FRANK J. MoCANnLEss, a citizen of the United States, residing at Allerton, in the county of Wayne and State of Iowa, have invented certain new and useful Improvements in Packed Moving Parts: and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to packed moving parts such for instance as a piston or abutment for rotary engines, or any other device in which such moving part. packed to prevent the passage of motive fluid found desirable.

An object of the invention is to provide means for packing the edge of a moving member with means for compensating for wear of such packing.

A further object of the invention is to provide such moving part with packing arranged in a plurality of independent sections each one of which may be independently moved to compensate for unusual or uneven wear of packing at that point.

A further object of the invention is to provide a packing composed of strings or cords of fibrous material presenting the ends of such strings or cords to wear with means for moving the cords longitudinally to force the ends continuously into engagement with the abutting surface.

lVith these and other objects in view the invention comprises certain novel constructions, combinations and arrangement of parts as will be hereinafter more fully described and claimed.

In the drawings: Figure 1 is a sectional view of a packed moving part showing partof the packing members removed to disclose the construction of the passages. Fig. 2 is a view of the device in plan. Fig. 3 is a view of the device in end elevation, part of the packing being removed. Fig. at is a view of the device in end elevation, the connecting means being broken away. Fig. 5 is a sec tional view taken on line 55 of Figs. 1, 2 and 3. Fig. 6 is a perspective view of one of the packing members removed showing the means for attaching the packing fabric to the movable block. Fig. 7 is a sectional view showing one of the uses of the device.

Like characters of reference designate corresponding parts throughout the several views.

The improved structure which forms the subject matter of this application is adapted for many uses and susceptible to many changes of form, one use being as an abutment for a rotary engine such for instance as that described in copcnding application Serial No. "40,218, filed Jan. 4th, 1913. At Fig. 7 a fragment of such a device is shown as disclosed in said copcnding application with the packed moving part used therein as an abutment. It is to be understood, of course, that this figure and the use described in association with such a device is simply illustrative of one use to which the structure may be put.

As shown the device comprises a body 10 through which extends partitions 11, 12, 13 and 1s forming a central chamber, extreme chambers and intermediate chambers as shown particularly at Fig. 1. As shown too, especially at Figs. 1 and 2 provision is made for packing a side which is not straight but is curved or composed of a broken line. The partitions l2 and 18 are straightthroughoutbut are tapered as indicated at 15 and 16 to produce at the side of the body a substantially sharp edge 17. This increases the width of the central chamber at its outer end and at the same time the chamber is made narrower in its opposite dimension as indicated more particularly at Fig. 5 by having its side walls taper inwardly as shown at 18 and 19. This tapering is also provided in the other chambers as for instance at 20 in the intermediate chambers. The intermediate chambers are made wider at their outer edges by curving the partition 11 as indicated at 21, such partition being reduced to an edge at 22 and the chamber made narrower in the opposite direction, the same as the central chamber shown at Fig. 5. Vithin these chambers blocks are adjustably movable-in the central chamber the block 23, in the extreme chambers blocks 24 and 25 and in the intermediate chambers blocks 26 and 27. Each of these blocks is provided with fibrous packing body composed of cords secured to the block in any approved manner, preferably as shown at Fig. 6 by forming the block with a concave face 28, folding the cords of the fibrous material and inserting a wire 29 through the fold which wire is secured to the sides of the block, binding the fold of the cords firmly within such block. The cords shown at are of ordinary hemp, Manila or other twine and it will be apparent that as they extend beyond the edges of the body, as shown at Figs. 1 and 2 the ends of said twine will come in contact with the parts which they are packing. It will also be apparent that as the blocks 23, 24:, 25, 26 and 27 are individually advanced the packing by means of its cord formation will be compressed laterally and expanded longitudinally. of the chambers so that a continuous uninterrupted packing surface will be presented throughout the entire packed area or edge of the device.

To move the blocks screws 31, 32, 33, 34c and 35 are employed which are extended through the head 36 and provided with means as shown at 37 to permit the rotation of such screws but to prevent their being pushed backwardly through the head, the stress being exerted to advance the blocks and push the fibrous packing farther out over the edge of the body.

To provide for packing around the body when used for instance as an abutment, as shown at Fig. 7 the body is provided with a shoulder 38 inclined as shown at Fig. 5 and packing in the form of cords or other fibrous material 39 are placed about the body adjacent such shoulder 38. A follower 40 is provided which slides upon the body 10, adjustment being secured by means of screws d1 which bear against the follower a0 and move it adjustably to compress the packing 39 thereby expanding it laterally into more close and intimate engagement with the passage or chamber in which the device operates.

I claim:

lfIn a device of the class described, a body provided with a plurality of partitions producing chambers increasingin one di mension and diminishing in the other dimension at the outer ends, blocks sliding in the chambers and packing cords carried by the blocks with their ends extending outwardly through the extremities of the chambers.

2. In a device of the class described, a body provided with a plurality of partitions tapered at their outer ends to enlarge the chamber in one dimension the opposite walls being contracted to diminish the area. of the chamber in the opposite direction, blocks slidable in the chambers, packing cords filling the chambers and secured to and moving with the blocks and means to move the blocks.

3. In a device of the class described, a body provided with a partition tapered at its outer end and producing a chamber increasing in one dimension and decreasing in the other dimension at the open end, a block slidable in the chamber above the increase in area, cord packing folded and having its fold secured to the block with its extremity extending out of the open end of the chamber and means to move the block.

4:. In a device of the class described, a body having walls producing a chamber increasing in one dimension and decreasing in the other dimension at the open end, a block slidable in the chamber, cords folded and their folds secured to the block and their extremities inserted through the chamber and extending beyond the open outer end and means to move the block.

In testimony whereof I aflix my signature in presence of two witnesses.

FRANK J. MOOANDLESS.

/Vitnesses:

l/VILLIAM HENRY HORMEL, THOMAS EDWIN WRIGHT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

